BONE MINERAL VERSUS SYNTHETIC HYDROXYAPATITE Synthetic Bone mineral Calcium Phosphates Chemical Calcium-deficient Hydroxyapatite carbonate apatite Whitlockite(TCP) and other calcium phosphate phases Crystalline Small crystalline size; Large crystallites noncrystalline phase high crystallinity Mechanical Lower strength Dense: higher lower modulus strength higher modulusBONE MINERAL VERSUS BONE MINERAL VERSUS SYNTHETIC HYDROXYAPATITE SYNTHETIC HYDROXYAPATITE Synthetic Synthetic Bone Mineral Bone Mineral Calcium Phosphates Calcium Phosphates Chemical Chemical Calcium Calcium -deficient deficient Hydroxyapatite Hydroxyapatite carbonate apatite carbonate apatite Whitlockite Whitlockite (TCP) and other calcium and other calcium phosphate phases phosphate phases Crystalline Crystalline Small crystalline size; Small crystalline size; Large crystallites; Large crystallites; noncrystalline phase noncrystalline phase high crystallinity high crystallinity Mechanical Mechanical Lower strength; Lower strength; Dense; higher Dense; higher lower modulus lower modulus strength; strength; higher modulus higher modulus